come true . prove to be true or correct实现；证实

His dream of becoming a university teacher has come true．他当一名大学教师的梦想实现了。

What the newspaper said about the weather for today has come true．报纸上关于今天天气的报道已经被证实了。

come up . happen；arise发生；出现

I expect something to come up soon．我预料不久就会发生什么事。

I'll let you know if anything comes up．如果发生什么事的话，我会让你知道的。

Many question came up about the quality of the project．关于产品质量的许多问题已经出现。

come up .move near；approach走近；靠近

I could hear footsteps coming up behind me．我听见身后的脚步声越来越近。

He came up and introduced himself．他走上前来并作了自我介绍。

Christmas is coming up soon．圣诞节即将来临。

come up . begin to grow生长；长出

The flowers should be coming up now it is spring．春天到了，花儿该开放了。

The seeds I sowed last week haven't come up yet．上星期我播下的种子还没有发芽呢。

come up .rise in society or rank地位提高

He was born poor，and came up the hard way．他出身贫寒，通过坚韧不拔的努力而获成功。

That politician has come up in my opinion since I heard his last speech．自从我上次听了那位政治家的演说之后，他在我心目中的地位已有所提高。

come up . be brought up for discussion；be mentioned被提出讨论；提及

The question hasn't come up yet．这个问题还没有被提出来。

When important questions come up，the members often lose their dignified ways and shout at each other．重要的问题一被提出来，议员们常常是失去了他们庄严的风度，互相争吵起来。

His name came up whenever the matter of nuclear energy was discussed．每当讨论核能问题时，人们总会提他的名字。

come up .enter a university as a student 进大学读书

He came up last year to study Modern History．他去年进大学读现代史。

When they first come up，most students are impressed by the freedom of university life as compared with the restrictions they have known at school．刚进大学时，与在中学时代所受的约束相比，大多数学生对较为自由的大学生活有了深刻的印象。

come up .be transported 运送

All our supplies have to come up by this railway．我们所有的生活用品都得靠这条铁路运送。

We destroyed the railway line to prevent the supplies from coming up to the enemy camp．为了切断给敌军兵营的给养运输，我们破坏了铁路。

come up against . meet（difficulties，opposition）遭到；应付（困难）；和…相抵触

The workers on strike came up against their employer's unwillingness to pay high wages．罢工的工人们与不愿给他们增加工资的雇主相对抗。

You may come up against a bit of opposition．你可能会遭到一些反对。

He came up against the headmaster，and eventually had to leave．他跟校长发生矛盾，最后只好离开。

When they were dealing with the case，they came up against a series of obstacles．当他们在审理这个案子的时候，遇到了一系列的障碍。

come up to .move near；approach；reach the height of接近；向…走来；达到…高度

A man came up to me and asked for a match．一个男人向我走来，要求点个火。

The water is coming up to the bank．水涨到与河岸相平了。

come up to .equal；reach相当；达到；与…匹敌

Your work did not come up to the expected standard．你的工作没有达到预期的标准。

He will come up to our expectations in his new job．他在新的工作中不会辜负我们的期望。

This picture does not come up to the one you showed me yesterday．这幅画没有你昨天给我看的那一幅好。

come up to .have the expected ill effect or result on对…产生预期的坏结果

Excessive drinking and smoking will come up to him．过量地喝酒抽烟，他是要吃苦头的。

come up with . offer；produce提供；提出

I hope you can come up with a better plan than this．我希望你能提出比这更好的计划来。

The teacher asked who could come up with a good solution to this problem．老师问谁能提出一个解决这个问题的好办法。

come up with . overtake；come level with赶上

We'll have to work hard to come up with other companies．我们必须勤奋工作，以便赶上别的公司。

When she came up with them，she saw that they had sat down and were going through the contents of the bag．当她追上他们的时后，她发现他们已经坐下并且正在翻包里的东西。

Let's go slowly so that they can come up with us．我们走慢点，好让他们赶上来。

come what may . no matter what happens不论发生什么事

Come what may，we'll stand together and help each other．不论发生什么事情，我们都将站在一起，互相支持。

I have decided to get a college education，come what may．我决定无论如何要去上大学。

comment on . comment upon . express one's opinion about评论

They will ask the Prime Minister to comment on the new foreign policy of the government．他们将请首相阐述一下新的对外政策。

The teacher commented favorably upon his ability．老师对他的能力加以称赞。

commit oneself to .be devoted to献身于

He committed himself to working for peace all through his life．他一生献身于和平事业。

commit oneself to .hold oneself to a promise or duty使承担义务

She has committed herself to helping me when necessary．她已答应在必要的时候帮助我。